1. Malpresentations;Lanni,2002
2. An epidemiologic study on low-birth-weight babies;Kitamura;Nippon Sanka Fujinka Gakkai Zasshi,1984
3. Malpresentation and cord prolapse;Kish,2003
4. Placental location and its influence on the position of the fetus in the uterus;Filipov;Akush Ginekol (Sofiia),2000
5. Breech childbirth— obstetrical and antepartum ultrasonography findings;Boos;Z Geburtshilfe Perinatol,1985